by Olivia Barker, USA TODAY

by Olivia Barker, USA TODAY

The marital math is impressive: three husbands, one engagement and at least one other major relationship in her sequined wake.

So kudos to Jennifer Lopez for being, uh, smart about taking things slow with her boyfriend of 2½ years, Casper Smart.

"I don't know. We'll see. I don't know," Lopez, 44, told TCA Press Tour reporters Monday when asked if she would like to walk down the aisle again. "You know, I've always believed in that institution. I believe in it, but it is difficult. I've had my challenges, but at the same time I believe in love, and I think that is the main thing."

Also key, no doubt: The fact that Smart, 26, is "fantastic" with her twins with husband No. 3, Marc Anthony, Max and Emme, 5.

As for her extra-long trail of exes, the American Idol judge was extra-blunt. "I'm one of those people who does not like to be alone," she said. "I have no shame saying that at this point in my life. I think we have to own who we are."